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Abstract

A METHOD OF MAKING A MATERIAL ALLOY FOR AN IRON-BASED RARE EARTH MAGNET INCLUDES THE STEP OF FORMING A MELT (3) OF AN ALLOY WITH A COMPOSITION OF (FEL-M TM) L00-X-Y-Z-N (BL-PCP) XRY TIZMN. T IS CO AND/OR NI; R IS AT LEAST ONE ELEMENT SELECTED FROM Y (YTTRIUM) AND THE RARE EARTH ELEMENTS; AND M IS AT LEAST ONE ELEMENT SELECTED FROM A1, SI, V, CR, MN, NI, CU, ZN, GA, ZR, NB, MO, AG, HF, TA, W,PT, AU AND PB, WHEREIN THE FOLLOWING INEQUALITIES ARE SATISFIED: 10 < X < 25 AT%, *6 < Y < 10 AT %, 0.5 < Z < 12 AT%, 0 < M < 0.5, 0 < N < 10 AT% AND 0 < P < 0.25. NEXT, THE MELT (3) IS FED ONTO A SHOOT (5) WITH A GUIDE SURFACE TILTED AT ABOUT 1 DEGREE TO ABOUT 80 DEGREES WITH RESPECT TO A HORIZONTAL PLANE, THEREBY MOVING THE MELT (3) ONTO A MELT/ROLLER CONTACT REGION.THE MELT (3) IS THEN RAPIDLY COOLED USING A CHILL ROLLER (7) TO MAKE A RAPIDLY SOLIDIFIED ALLOY INCLUDING AN R2FE14B PHASE.(FIG 1)

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First Claim

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